on undecided women who very much could hold the key now to a second term for barack obama. diane? high stakes on both sides. >> all right. yeah, david, and great to have you reporting tonight. >>> and as you said, the presidential race keeps coming back to jobs, and today, a kind of report card for all of us on the nation's economic recovery. news that the nation's gross domestic product grew at 2% in the third quarter. that's faster than in the second quarter. and fueled by consumer spending and a housing market rumbling back to life. experts say it's a sign that the risk of a second recession is now low. >>> and, we move on next to a story about one devastated american family that has sparked a conversation among thousands of other families today. two young children were murdered, their nanny, accused of the crime. and so, we decided to search out some numbers, nationwide, for perspective on so much pain. abc's dan harris has the answers. >> reporter: the aftermath of what police suspect is an astonishing act of betrayal. last night, dr. marina krim returned home to her u